I can’t speak to the authenticity or value of the patent drawings, but the other sketches show some talent and ability, and are clearly referencing Biblical descriptions.
It’s a bit of a peculiar mashup, though. The presumably angelic being is cloven hoofed, which throws the whole thing into an entirely different, demonic light, one that is not exactly friendly to Christianity while obviously obsessed with it simultaneously.
Nation Of Islam, imho. Mothership, wheels within wheels, all the wildest prophetic visions and descriptions from the Bible, but warped.
There is a peculiar neologism in one of the handwritten documents that jumped out at me, “interrelationship,” combining “interpolation” and “interrelationship.” That also makes me think of the sort of person who would be Nation Of Islam, a fascination with multisyllabic nickel words but not entirely rigorous in the understanding of them or the proper use of them.
Autocorrect got hold of the neologism I referenced and “corrected” it. Should have been “interpelationship.”
My first thought regarding the fantasy items was a comic book (discounting the mechanical drawings)